JPH08259914A - Surface protective film - Google Patents
Surface protective filmInfo
- Publication number
- JPH08259914A JPH08259914A JP6267995A JP6267995A JPH08259914A JP H08259914 A JPH08259914 A JP H08259914A JP 6267995 A JP6267995 A JP 6267995A JP 6267995 A JP6267995 A JP 6267995A JP H08259914 A JPH08259914 A JP H08259914A
- Authority
- JP
- Japan
- Prior art keywords
- film
- adhesive layer
- protective film
- pressure
- sensitive adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は表面保護フィルムに関す
るものである。FIELD OF THE INVENTION The present invention relates to a surface protective film.
【０００２】[0002]
【従来の技術】合成樹脂板、化粧合板、金属板、塗装鋼
板等の加工時や搬送時の傷や汚れの防止のために、表面
保護フィルムが使用されている。2. Description of the Related Art A surface protective film is used to prevent scratches and stains on a synthetic resin plate, a decorative plywood, a metal plate, a coated steel plate or the like during processing or transportation.
【０００３】従来、この種の表面保護フィルムとして、
例えば、特公昭５８−３０９１１号公報には、一般式−
Ａ−Ｂ−Ａ−（但し、重合体ブロックＡがホモ重合体と
して２０℃以上のガラス転移温度を有するスチレン重合
体ブロックであり、ブロックＢがブタジエンまたはイソ
プレンの如き少なくとも１個の共役ジエンから誘導され
たエラストマーブロックである。）のブロック共重合体
ゴム単独或いは該ゴム１００重量部に対し３０重量部以
下の粘着付与樹脂を天下してなる常態において１５〜４
００ｇ／２０ｍｍ幅の接着力を有する接着剤成分と溶融
押出して、フィルム層と接着剤層とを複合してなる表面
保護フィルムの製造方法が開示されている。Conventionally, as this type of surface protective film,
For example, Japanese Patent Publication No. 58-30911 discloses a general formula-
A-B-A- (where polymer block A is a styrene polymer block having a glass transition temperature of 20 ° C or higher as a homopolymer, and block B is derived from at least one conjugated diene such as butadiene or isoprene). Block copolymer rubber alone or 30 to 30 parts by weight of tackifying resin per 100 parts by weight of the rubber.
Disclosed is a method for producing a surface protective film, which is obtained by melt-extruding an adhesive component having an adhesive force of 00 g / 20 mm width and compounding a film layer and an adhesive layer.
【０００４】又、特開昭６１−１０３９７５号公報に
は、Ａ−Ｂ−Ａ（但し、Ａはスチレン重合体ブロック
を、Ｂはエチレンとブチレンとの共重合体ブロックを示
す）１００重量部と粘着付与樹脂０〜８０重量部を含有
する組成物よりなる接着剤層を、ポリオレフィン樹脂フ
ィルム上に形成させてなる表面保護用接着フィルムが開
示されている。Further, in JP-A-61-1103975, 100 parts by weight of ABA (where A is a styrene polymer block and B is a copolymer block of ethylene and butylene) is used. An adhesive film for surface protection is disclosed in which an adhesive layer made of a composition containing 0 to 80 parts by weight of a tackifying resin is formed on a polyolefin resin film.
【０００５】しかし、上記特公昭５８−３０９１１号公
報及び特開昭６１−１０３９７５号公報に開示されてい
る表面保護フィルムは、いずれも、ステンレス鋼板、ア
ルミニウム板等の金属板、ポリエステル系樹脂塗装鋼
板、アクリル系樹脂塗装鋼板に貼付けた後の接着昂進が
激しく、特に加熱した時には、剥離不能となることがあ
る。However, the surface protective films disclosed in JP-B-58-30911 and JP-A-61-103975 are all stainless steel plates, metal plates such as aluminum plates, and polyester resin coated steel plates. , The adhesion progress after sticking to the acrylic resin-coated steel sheet is severe, and in particular, when heated, it may become impossible to peel.
【０００６】又、特開昭４９−９６０５４号公報には、
粘着剤組成物１００重量部に対して燐酸エステルもしく
は／またはその誘導体を０．５〜１０重量部添加して、
表面保護シート用粘着剤組成物とし、これを、ポリエチ
レンフィルムもしくは軟質塩化ビニルフィルムに塗布し
た表面保護フィルムが開示されている。Further, Japanese Patent Laid-Open No. 49-96054 discloses that
0.5 to 10 parts by weight of a phosphoric acid ester or / or a derivative thereof is added to 100 parts by weight of the adhesive composition,
A pressure-sensitive adhesive composition for a surface protective sheet, which is applied to a polyethylene film or a soft vinyl chloride film, is disclosed.
【０００７】しかし、上記特開昭４９−９６０５４号公
報に開示されている表面保護フィルムは、接着昂進はし
ないが、逆に、高温に曝されると端部から浮いてくる。However, the surface protective film disclosed in the above-mentioned JP-A-49-96054 does not promote adhesion, but conversely, when exposed to high temperature, it floats from the end.
【０００８】[0008]
【発明が解決しようとする課題】本発明は叙上の事実に
鑑みなされたものであって、その目的とするところは、
被保護物表面に貼付された表面保護フィルムが、物流過
程や加工時に剥離したりすることがなく、使用後、作業
性よく軽く剥離できる表面保護フィルムを提供するにあ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and its object is to:
It is an object of the present invention to provide a surface protective film which is not peeled off during the distribution process or processing of a surface protective film attached to the surface of an object to be protected and which can be peeled off easily after use with good workability.
【０００９】[0009]
【課題を解決するための手段】本発明は、基材フィルム
に粘着剤層が積層されてなる表面保護フィルムにおい
て、基材フィルムの粘着剤層側の表面の中心線平均粗さ
（Ｒａ）が０．５〜２μｍであり、粘着剤層の基材フィ
ルムと反対側の面の中心線平均粗さ（Ｒａ）が０．２μ
ｍ以下であることを特徴とする表面保護フィルムをその
要旨とするものである。Means for Solving the Problems The present invention provides a surface protective film comprising a substrate film and an adhesive layer laminated on the substrate film, the center line average roughness (Ra) of which is on the adhesive layer side of the substrate film. 0.5 to 2 μm, and the center line average roughness (Ra) of the surface of the pressure-sensitive adhesive layer opposite to the base film is 0.2 μm.
The gist of the invention is a surface protective film having a thickness of m or less.
【００１０】本発明における基材フィルムは、特に限定
されるものではないが、例えば、可塑化ポリ塩化ビニル
フィルム、ポリエチレン、ポリプロピレン、ポリブテン
等のポリオレフィン系フィルム、ポリエチレンテレフタ
レート、ポリブチレンテレフタレート等のポリエステル
系フィルム等が挙げられる。これらの基材フィルムは、
単一種の樹脂もしくは複数種の樹脂組成物からなる単層
のフィルムであってもよいが、単一種の樹脂もしくは複
数種の樹脂組成物からなる多層フィルムであってもよ
い。The substrate film in the present invention is not particularly limited, but examples thereof include plasticized polyvinyl chloride film, polyolefin films such as polyethylene, polypropylene and polybutene, and polyester films such as polyethylene terephthalate and polybutylene terephthalate. Examples include films. These substrate films are
It may be a single-layer film made of a single type of resin or a plurality of types of resin compositions, or may be a multilayer film made of a single type of resin or a plurality of types of resin compositions.
【００１１】本発明における粘着剤層は、上記基材フィ
ルムに適した粘着剤を適宜選択使用され、特に限定され
るものではないが、比較的広範な基材フィルムに対し好
適に使用される粘着剤層として、例えば、エチレン−酢
酸ビニル共重合体（ＥＶＡ）、スチレン−ブタジエン−
スチレンブロック共重合体（ＳＢＳ）、スチレン−イソ
プレン−スチレンブロック共重合体（ＳＩＳ）、スチレ
ン−エチレン・ブチレン−スチレンブロック共重合体
（ＳＥＢＳ）、スチレン−エチレン・プロピレン−スチ
レンブロック共重合体（ＳＥＰＳ）、アクリル酸エステ
ル共重合体を主体とする樹脂、弾性体もしくはこれらの
組成物からなるものが挙げられる。For the pressure-sensitive adhesive layer in the present invention, a pressure-sensitive adhesive suitable for the above-mentioned base film is appropriately selected and used, and is not particularly limited, but it is preferably used for a relatively wide range of base film. Examples of the agent layer include ethylene-vinyl acetate copolymer (EVA) and styrene-butadiene-
Styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene-ethylene / butylene-styrene block copolymer (SEBS), styrene-ethylene / propylene-styrene block copolymer (SEPS) ), A resin containing an acrylic acid ester copolymer as a main component, an elastic body, or a composition thereof.
【００１２】上記粘着剤は上記樹脂もしくは弾性体の単
一種もしくは複数種からなる単層の粘着剤層であっても
よいが、単一種の樹脂もしくは弾性体又は複数種の樹脂
もしくは弾性体の組成物からなる多層の粘着剤層であっ
てもよい。又、上記粘着剤には、必要に応じて、粘着付
与樹脂、紫外線防止剤、熱安定剤、滑剤、充填剤等の添
加剤が添加されてもよい。The above-mentioned pressure-sensitive adhesive may be a single-layer pressure-sensitive adhesive layer composed of a single kind or a plurality of kinds of the above-mentioned resins or elastic bodies, but the composition of a single kind of resin or elastic body or a plurality of kinds of resins or elastic bodies. It may be a multi-layered pressure-sensitive adhesive layer. Further, if necessary, additives such as tackifying resin, ultraviolet ray inhibitor, heat stabilizer, lubricant, filler and the like may be added to the above-mentioned pressure-sensitive adhesive.
【００１３】本発明における中心線平均粗さ（Ｒａ）
は、ＪＩＳ Ｂ ０６０１（表面粗さの定義と表示）に
規定する表面粗さであって、その測定は、ＪＩＳ Ｂ
０６５１（触針式表面粗さ測定器）に準拠し、小坂研究
所社製、ＳＥ−３Ｈを用いて行ったものである。Centerline average roughness (Ra) in the present invention
Is the surface roughness specified in JIS B 0601 (definition and display of surface roughness), and the measurement is performed according to JIS B 0601.
According to 0651 (a stylus type surface roughness measuring instrument), SE-3H manufactured by Kosaka Laboratory Ltd. was used.
【００１４】基材フィルムの粘着剤層に接する表面の中
心線平均粗さ（Ｒａ）が、０．５μｍ未満である場合、
高速剥離性が悪くなる。ここで高速剥離性とは２０ｍ／
ｍｉｎ以上の剥離速度による剥離のし易さを意味し、実
際に被保護物表面から作業者が表面保護フィルムを剥離
する状態（剥離速度は２０〜４０ｍ／ｍｉｎ）の代用特
性である。従って、高速剥離性が悪いということは、実
際に剥離作業がしづらいということである。又、Ｒａが
２．０μｍを超えると、その上層に積層されている粘着
剤層の表面のＲａが０．２μｍを超えてしまう。When the center line average roughness (Ra) of the surface of the base film in contact with the pressure-sensitive adhesive layer is less than 0.5 μm,
High-speed peelability deteriorates. Here, the high-speed peelability is 20 m /
It means ease of peeling at a peeling speed of min or more, and is a substitute characteristic in a state where the worker actually peels the surface protective film from the surface of the protected object (peeling speed is 20 to 40 m / min). Therefore, the poor high-speed peelability means that the peeling work is actually difficult. On the other hand, when Ra exceeds 2.0 μm, Ra on the surface of the pressure-sensitive adhesive layer laminated thereabove exceeds 0.2 μm.
【００１５】上記粘着剤層の表面のＲａが０．２μｍを
超えると、被保護物表面との実質的な接着面積が少なく
なり、被保護物表面から表面保護フィルムが浮いてしま
い、初期粘着力を低下させる。When the Ra of the surface of the pressure-sensitive adhesive layer exceeds 0.2 μm, the substantial adhesive area with the surface of the object to be protected becomes small, the surface protective film floats from the surface of the object to be protected, and the initial adhesive force is increased. Lower.
【００１６】[0016]
【作用】本発明の表面保護フィルムは、粘着剤層に接す
る基材フィルムの表面の中心線平均粗さ（Ｒａ）が０．
５〜２μｍであり、粘着剤層の表面の中心線平均粗さ
（Ｒａ）が０．２μｍ以下であるので、初期粘着力は十
分大きく、被保護物表面に貼付し易く、一旦、貼付され
ると被保護物表面にしっかりと貼合わされており、流通
過程や加工時に剥離することがない。又、不要となった
表面保護フィルムを被保護物表面から剥離する際には、
作業性よく軽く剥離できる。In the surface protective film of the present invention, the center line average roughness (Ra) of the surface of the base film in contact with the pressure-sensitive adhesive layer is 0.
Since it is 5 to 2 μm, and the center line average roughness (Ra) of the surface of the pressure-sensitive adhesive layer is 0.2 μm or less, the initial adhesive force is sufficiently large, and it is easy to stick to the surface of the object to be protected. It is firmly adhered to the surface of the object to be protected and does not peel off during the distribution process or processing. Also, when peeling off the unnecessary surface protection film from the surface of the object to be protected,
Good workability and light peeling.
【００１７】上記の如く、粘着剤層との界面における基
材フィルムの表面の中心線平均粗さ（Ｒａ）が０．５〜
２μｍと粗な面とし、粘着剤層の表面の中心線平均粗さ
（Ｒａ）が０．２μｍ以下である平滑な面とすることに
より、上記の如く高い高速剥離性を示すことは、次のよ
うに推察される。As described above, the center line average roughness (Ra) of the surface of the substrate film at the interface with the adhesive layer is 0.5 to.
The high-speed peelability as described above can be obtained by making the surface as rough as 2 μm and making the surface of the pressure-sensitive adhesive layer a center line average roughness (Ra) of 0.2 μm or less. Is speculated to be.
【００１８】即ち、粘着剤層の厚さが大きくなると剥離
力は大きくなる。粘着剤層との界面における基材フィル
ムの表面の中心線平均粗さ（Ｒａ）が０．５〜２μｍで
あるということは、粘着剤層の厚さが結果として、１〜
４．０μｍの波面状のバラツキを与えることになる。然
るに、高速で表面保護フィルムを被保護物表面から剥離
すれば、表面保護フィルムと被保護物物表面はその粘着
剤層界面において剥離力の強弱の状態を断続的に繰り返
す衝撃破壊の状態となり、剥離に要する力は基材フィル
ムの平滑面に均一に設けられた粘着剤層を有する表面保
護フィルムに比べて後述する実施例の評価結果に見られ
るように１／３以下と極めて小さい値となり、実際の剥
離作業が容易となる。That is, as the thickness of the pressure-sensitive adhesive layer increases, the peeling force increases. The center line average roughness (Ra) of the surface of the substrate film at the interface with the adhesive layer is 0.5 to 2 μm, which means that the thickness of the adhesive layer results in 1 to
This gives a wavefront variation of 4.0 μm. However, if the surface protection film is peeled off from the surface of the object to be protected at a high speed, the surface protection film and the surface of the object to be protected are in a state of impact fracture in which the state of the peel strength is intermittently repeated at the adhesive layer interface, The force required for peeling is 1/3 or less, which is an extremely small value, as seen in the evaluation results of Examples described later, as compared with the surface protection film having the pressure-sensitive adhesive layer uniformly provided on the smooth surface of the base film, Actual peeling work becomes easy.
【００１９】[0019]
【実施例】以下、本発明の実施例を具体的に説明する
が、本発明はこれに限定されない。 （実施例１）厚さ６０μｍ、一面が平滑で中心線平均粗
さ（Ｒａ）が０．１μｍであり、他の面が粗で中心線平
均粗さ（Ｒａ）が１．５μｍであるＰＥＴフィルムを基
材フィルムとし、該基材フィルムの粗な面にコロナ放電
処理を施し、該コロナ放電処理面に、別途準備されたＳ
ＢＳの水素添加物（シェル化学社製、商品名：クレイト
ンＧ１６５７）１００重量部及び脂環族系石油樹脂（ト
ーネックス社製、商品名：エスコレッツ５３００）２０
重量部のトルエン１０重量％及び４０重量％溶液を、１
０重量％溶液を乾燥後のフィルムの全厚さが６３μｍと
なる如く塗工し、更に、該塗工面に４０重量％溶液を塗
布乾燥し、フィルムの全厚さを７５μｍとし、表面保護
フィルムを作製した。得られた粘着剤層の表面の中心線
平均粗さ（Ｒａ）は０．１μｍであった。EXAMPLES Examples of the present invention will be specifically described below, but the present invention is not limited thereto. Example 1 A PET film having a thickness of 60 μm, one surface of which is smooth and the center line average roughness (Ra) is 0.1 μm, and the other surface of which is rough and the center line average roughness (Ra) is 1.5 μm. As a base film, the rough surface of the base film is subjected to corona discharge treatment, and the S prepared separately is applied to the corona discharge treated surface.
100 parts by weight of hydrogenated product of BS (manufactured by Shell Chemical Co., Ltd., product name: Clayton G1657) and alicyclic petroleum resin (manufactured by Tonex Co., product name: Escoletz 5300) 20
1 part by weight of a 10 wt% and 40 wt% solution of toluene.
A 0% by weight solution was applied so that the total thickness of the film after drying would be 63 μm, and a 40% by weight solution was applied to the coated surface and dried to give a total thickness of the film of 75 μm, and a surface protection film was obtained. It was made. The center line average roughness (Ra) of the surface of the obtained pressure-sensitive adhesive layer was 0.1 μm.
【００２０】（比較例１）厚さ６０μｍ、両表面の中心
線平均粗さ（Ｒａ）が０．１μｍであるＰＥＴフィルム
を基材フィルムとしたこと以外、実施例１と同様に粘着
剤層を設け、表面保護フィルムを作製した。得られた粘
着剤層の表面の中心線平均粗さ（Ｒａ）は０．１μｍで
あった。Comparative Example 1 An adhesive layer was prepared in the same manner as in Example 1 except that a PET film having a thickness of 60 μm and a center line average roughness (Ra) on both surfaces of 0.1 μm was used as the base film. Then, a surface protection film was prepared. The center line average roughness (Ra) of the surface of the obtained pressure-sensitive adhesive layer was 0.1 μm.
【００２１】（比較例２）実施例１で使用したＰＥＴフ
ィルムを基材フィルムとし、該基材フィルムの粗な面に
コロナ放電処理を施し、該コロナ放電処理面に、実施例
１と同じ粘着剤組成のトルエン４０重量％溶液を塗布乾
燥し、フィルムの全厚さを７５μｍとし、表面保護フィ
ルムを作製した。得られた粘着剤層の表面の中心線平均
粗さ（Ｒａ）は０．５μｍであった。(Comparative Example 2) The PET film used in Example 1 was used as a base film, the rough surface of the base film was subjected to corona discharge treatment, and the same adhesive as in Example 1 was applied to the corona discharge treated surface. A 40% by weight solution of toluene having the agent composition was applied and dried to make the total thickness of the film 75 μm, to prepare a surface protective film. The center line average roughness (Ra) of the surface of the obtained pressure-sensitive adhesive layer was 0.5 μm.
【００２２】（性能評価）実施例及び比較例で得られた
表面保護フィルムの初期粘着力及び経時粘着力を以下に
示す方法で測定した。結果は表１に示す。(Performance Evaluation) The initial adhesive strength and the temporal adhesive strength of the surface protective films obtained in Examples and Comparative Examples were measured by the following methods. The results are shown in Table 1.
【００２３】１．被接着面（被保護物）：アクリル系樹
脂塗装鋼板（表面グロス２２％） ２．初期粘着力：ＪＩＳ Ｚ ０２３７−８に準拠し、
上記被接着面にラミネート圧力２ｋｇ／ｍ2 で表面保護
フィルムを貼合わせ、２３℃×６５％ＲＨで３０分コン
ディショニングした後、表１に示す剥離速度で表面保護
フィルムを剥離した際の粘着力を測定した。 ３．経時粘着力：上記被接着面に前項と同様にして貼付
した表面保護フィルムに、２３℃×６０％ＲＨの環境で
７日間、５００ｔ／ｍ2 の荷重を負荷した状態においた
後、表１に示す剥離速度で表面保護フィルムを剥離した
際の粘着力を測定した。猶、高速（２０ｍ／ｍｉｎ）剥
離試験機は、テスター産業社製、高速剥離試験機ＴＥ−
７０１を用いた。1. Adhesive surface (object to be protected): Acrylic resin coated steel plate (22% surface gloss) 1. Initial adhesive strength: in accordance with JIS Z 0237-8,
A surface protective film was attached to the surface to be adhered at a laminating pressure of 2 kg / m 2 , and after conditioning at 23 ° C. × 65% RH for 30 minutes, the adhesive force when the surface protective film was peeled at the peeling rate shown in Table 1 was measured. It was measured. 3. Adhesion with time: The surface protective film stuck to the adherend surface in the same manner as in the above item was placed under a load of 500 t / m 2 for 7 days in an environment of 23 ° C. × 60% RH, and then shown in Table 1. The adhesive force when the surface protective film was peeled off at the peeling speed shown was measured. The high-speed (20 m / min) peel tester is a high-speed peel tester TE- manufactured by Tester Sangyo Co., Ltd.
701 was used.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【発明の効果】本発明の表面保護フィルムは、叙上の如
く構成されているので、初期粘着力は十分おおきく、被
保護物表面に貼付し易く、一旦、貼付されると被保護物
表面にしっかりと貼合わされており、流通過程や加工時
に剥離することがない。又、不要となった表面保護フィ
ルムを被保護物表面から剥離する際には、被保護物表面
を汚染することなく、作業性よく軽く剥離できる。Since the surface protective film of the present invention is constructed as described above, the initial adhesive strength is sufficiently large that it can be easily attached to the surface of the object to be protected, and once it is attached to the surface of the object to be protected. It is firmly attached and does not peel off during distribution or processing. Further, when the unnecessary surface protective film is peeled off from the surface of the object to be protected, the surface of the object to be protected can be lightly peeled with good workability without being contaminated.
Claims (1)
る表面保護フィルムにおいて、基材フィルムの粘着剤層
側の表面の中心線平均粗さ（Ｒａ）が０．５〜２μｍで
あり、粘着剤層の基材フィルムと反対側の面の中心線平
均粗さ（Ｒａ）が０．２μｍ以下であることを特徴とす
る表面保護フィルム。1. A surface protective film comprising an adhesive layer laminated on a base film, wherein the center line average roughness (Ra) of the adhesive film side surface of the base film is 0.5 to 2 μm. A surface protective film, wherein the center line average roughness (Ra) of the surface of the pressure-sensitive adhesive layer opposite to the base film is 0.2 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6267995A JPH08259914A (en) | 1995-03-22 | 1995-03-22 | Surface protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6267995A JPH08259914A (en) | 1995-03-22 | 1995-03-22 | Surface protective film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08259914A true JPH08259914A (en) | 1996-10-08 |
Family
ID=13207220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6267995A Pending JPH08259914A (en) | 1995-03-22 | 1995-03-22 | Surface protective film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08259914A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001025363A1 (en) * | 1999-10-01 | 2001-04-12 | Teijin Limited | Surface protecting film and laminate comprising the same |
| JP2002338911A (en) * | 2001-05-21 | 2002-11-27 | Nitto Denko Corp | Protective sheet for processing semiconductor wafer |
| JP2005309071A (en) * | 2004-04-21 | 2005-11-04 | Nitto Denko Corp | Mother glass protective film for flat-panel displays, and its use |
| JP2006152308A (en) * | 2005-12-28 | 2006-06-15 | Nitto Denko Corp | Method of cutting electronic part |
| BE1016833A3 (en) * | 2004-04-21 | 2007-08-07 | Nitto Denko Corp | PROTECTIVE FILM FOR BASE GLASS FOR FLAT SCREENS AND ITS USE. |
| JP2007280976A (en) * | 2006-04-03 | 2007-10-25 | Gunze Ltd | Base film for surface protection tape used for grinding rear face of semiconductor wafer |
| JP2008063474A (en) * | 2006-09-08 | 2008-03-21 | Okura Ind Co Ltd | Base material film for surface protection film |
| WO2008069095A1 (en) * | 2006-12-01 | 2008-06-12 | Lintec Corporation | Releasable adhesive sheet |
| EP2184331A1 (en) * | 2007-08-30 | 2010-05-12 | Denki Kagaku Kogyo Kabushiki Kaisha | Pressure sensitive adhesive sheet and process for manufacturing electronic part |
| JP2010229246A (en) * | 2009-03-26 | 2010-10-14 | Daio Paper Corp | Pressure-sensitive adhesive sheet |
| WO2013094542A1 (en) * | 2011-12-19 | 2013-06-27 | 日東電工株式会社 | Carrier film for transparent conductive films, and laminate |
| JP2014001366A (en) * | 2011-12-19 | 2014-01-09 | Nitto Denko Corp | Carrier film for transparent conductive films, and laminate |
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-
1995
- 1995-03-22 JP JP6267995A patent/JPH08259914A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001025363A1 (en) * | 1999-10-01 | 2001-04-12 | Teijin Limited | Surface protecting film and laminate comprising the same |
| US6582789B1 (en) | 1999-10-01 | 2003-06-24 | Teijin Limited | Surface protective film and laminate formed therefrom |
| JP2002338911A (en) * | 2001-05-21 | 2002-11-27 | Nitto Denko Corp | Protective sheet for processing semiconductor wafer |
| JP4689075B2 (en) * | 2001-05-21 | 2011-05-25 | 日東電工株式会社 | Protective sheet for semiconductor wafer processing |
| BE1016833A3 (en) * | 2004-04-21 | 2007-08-07 | Nitto Denko Corp | PROTECTIVE FILM FOR BASE GLASS FOR FLAT SCREENS AND ITS USE. |
| BE1016834A5 (en) * | 2004-04-21 | 2007-08-07 | Nitto Denko Corp | PROTECTIVE FILM FOR BASE GLASS FOR FLAT SCREENS AND ITS USE. |
| JP2005309071A (en) * | 2004-04-21 | 2005-11-04 | Nitto Denko Corp | Mother glass protective film for flat-panel displays, and its use |
| JP4688431B2 (en) * | 2004-04-21 | 2011-05-25 | 日東電工株式会社 | Mother glass protective film for flat panel display and its use |
| JP2006152308A (en) * | 2005-12-28 | 2006-06-15 | Nitto Denko Corp | Method of cutting electronic part |
| JP2007280976A (en) * | 2006-04-03 | 2007-10-25 | Gunze Ltd | Base film for surface protection tape used for grinding rear face of semiconductor wafer |
| JP4745927B2 (en) * | 2006-09-08 | 2011-08-10 | 大倉工業株式会社 | Base film for surface protection film |
| JP2008063474A (en) * | 2006-09-08 | 2008-03-21 | Okura Ind Co Ltd | Base material film for surface protection film |
| US8685523B2 (en) | 2006-10-18 | 2014-04-01 | Nitto Denko Corporation | Surface protection film and optical film with surface protection film |
| WO2008069095A1 (en) * | 2006-12-01 | 2008-06-12 | Lintec Corporation | Releasable adhesive sheet |
| JP2008138066A (en) * | 2006-12-01 | 2008-06-19 | Lintec Corp | Removable pressure-sensitive adhesive sheet |
| EP2184331A4 (en) * | 2007-08-30 | 2013-10-02 | Denki Kagaku Kogyo Kk | Pressure sensitive adhesive sheet and process for manufacturing electronic part |
| JP5178726B2 (en) * | 2007-08-30 | 2013-04-10 | 電気化学工業株式会社 | Method for manufacturing adhesive sheet and electronic component |
| US8651919B2 (en) | 2007-08-30 | 2014-02-18 | Denki Kagaku Kogyo Kabushiki Kaisha | Adhesive sheet and process for manufacturing electronic part |
| EP2184331A1 (en) * | 2007-08-30 | 2010-05-12 | Denki Kagaku Kogyo Kabushiki Kaisha | Pressure sensitive adhesive sheet and process for manufacturing electronic part |
| JP2010229246A (en) * | 2009-03-26 | 2010-10-14 | Daio Paper Corp | Pressure-sensitive adhesive sheet |
| WO2013094542A1 (en) * | 2011-12-19 | 2013-06-27 | 日東電工株式会社 | Carrier film for transparent conductive films, and laminate |
| JP2014001366A (en) * | 2011-12-19 | 2014-01-09 | Nitto Denko Corp | Carrier film for transparent conductive films, and laminate |
| CN103998551A (en) * | 2011-12-19 | 2014-08-20 | 日东电工株式会社 | Carrier film for transparent conductive films, and laminate |
| CN103998551B (en) * | 2011-12-19 | 2016-12-28 | 日东电工株式会社 | Nesa coating carrier film and duplexer |
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